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Amid Biosciences | Protein Engineering Company

Protein A Magnetic Nanoparticles

$ 150.00

Amid Biosciences Protein A functionalized magnetic nanoparticles  – Protein A SilaMag Nanoparticles (Catalog # PAMP-101-1) are high-capacity affinity particles for antibody purification and immunoprecipitation methods. Protein A SilaMag Nanoparticles with average size of 400 nm are made according to a modified Stoeber process by hydrolysis of orthosilicates and consecutive coupling with recombinant Protein A. Recombinant Protein A contains five high-affinity IgG binding domains. 


  • Affinity purifications of IgG antibodies from various sources.
  • Immunoprecipitation for protein isolation.
  • Co-immunoprecipitation (Co-IP) or protein complex pull-down.


  • High-affinity for for Fc region of IgG antibodies from human and mouse.
  • High binding capacity (greater than > 25 µg of Human IgG per mg of particles).
  • Binds to total IgGs from cow, guinea pig, hamster, horse, pig, and rabbit.
  • Fast magnetic separation.

Catalog # PAMP-101-1 

Protein A SilaMag Nanoparticles supplied as 10 mg/ml in 1X PBS, pH 7.4, 0.05% NaN3, 0.05% Tween 20.

Precautions and Disclaimer

Protein A SilaMag Nanoparticles are for laboratory use only. The storage buffer contains 0.02% sodium azide which is toxic. Please refer to the Safety Data Sheet (SDS).


The suspension should be stable approximately six months stored at 2-8 °C. DO NOT FREEZE. Freezing will damage bead structure.

International Shipping:  Product requires shipping on ice packs. Please contact for shipment estimates. 

For custom orders please contact


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